Woolworth Building, boiler room from N.W. corner.

Woolworth Building, boiler room looking N.W.

Woolworth Building, rear from N.W. corner.

Woolworth Building, shoring N.W. corner.

Woolworth Building, engine room from N.W. corner.

Woolworth Building, exterior from N.W.

Woolworth Building, boiler room from S.W. corner.

Woolworth Building, boiler room from N.E. corner.

Woolworth Building, exterior from N.W. corner.

Woolworth Building, boiler room.

Woolworth Building, basement from N.W. corner looking east to Park Place.

Woolworth Building, sub-cellar N.W. corner.

Woolworth Building, from S.E. corner looking N.W.

Woolworth Building, engine room looking N.W.

Woolworth Building, sub-cellar, laying floor in N.W. corner of pit.

Woolworth Building, boiler room looking north.

Woolworth Building, [from] Barclay looking N.W.

Woolworth Building, sub-cellar, pit in N.W. corner.

Woolworth Building, boiler room.

Woolworth Building. Boiler room.